RK

Richard Harry Ketchum

AT AT&T: 2 patents #146 of 1,481Top 10%
📍 Wheaton, IL: #11 of 72 inventorsTop 20%
🗺 Illinois: #564 of 5,663 inventorsTop 10%
Overall (2004): #44,740 of 270,089Top 20%
2
Patents 2004

Issued Patents 2004

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6757384 Robust double-talk detection and recovery in a system for echo cancelation Anand Rangaswamy Setlur 2004-06-29
6744885 ASR talkoff suppressor Anand Rangaswamy Setlur, David Thomson 2004-06-01